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(No Model.) 2 Sheets -Sheet 1.

G. SPERRY.

SPEED INDICATOR AND REGISTER.

No. 372,875. Patented Nov. 8, 1887.

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(No Model.) 2 Sheets-Sheet 2. 0. SPERBY.

SPEEDINDIGATOR AND REGISTER.

I No. 372,875. Patented Nov. 8, 1887.

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INVENTOR M BY M? ATTORNEYS.

' Vessel to which theinstrument is attached has tooth wheel of the counter.

UNITED STATES PATENT OFFICE.

CHARLES SPEBRY, OF NEW YORK, N. Y.

SPEED INDICATOR AND REGISTER.

SPECIFICATION forming part of Letters Patent No. 372,875, dated November 8, 1887.

Application filed January 22, 1867.

To all whom it may concern.-

Be it known that 1, CHARLES SPERRY,of the city, county, and State of New York, have invented a new and useful Logometer, of which the following is a full,clear, and exact description.

My invention relates to improvements to be attached to and operated by my speed-indicator for vessels,forn1ing the subject of my application for Letters Patent, filed November 24, 1886, Serial No. 219,761; and the objects ofiny improvements are to provide registering mechanism, to be operated and regulated by time mechanism indicating uniform time, in combination with the speed-indicating mechanism, the register showing the distance that the covered sincethe time of starting, thereby composing a complete logometer to constantly indicate uniform time, the speed of, and the distance run by the vessel. I accomplish these objects by the mechanism illustrated in the accompanying drawings, in which- I Figure 1 is a front view of the logometer with portions of its dial broken away,showing my improvement applied thereto. Fig. 2 is a front view of the counter removed from the case. Fig. 3 is a longitudinal cross-sectional view ofone of the nu mber-wheelsand a pinion. Fig. 4 is an end view of one of the number-wheels and a pinion, and Fig. 5 is an end view of the first numbenwheel and the single- Similar figures refer to similar parts throughout the several views.

A represents the dial, a. the toothed sector, bthe scroll-gear, c the pointer arbor, and d the curved operating-arm of my speed-indicator, fully described in my above-mentioned application.

1 and 2 are small dials, graduated on the large dial-plate A of the instrument. Dial 1 is graduated in measures of time, and dial 2 in measures of length, (knots in this instance.) The circuit of dial 2 represents one knot, and the grad nations are fractions of one knot.

3 is a counter, showing the aggregate number of knots which the vessel has sailed since a certain timesay the time the vessel started on her voyage.

etrepresents a chronometer or clock-work,

Serial No. 225,103. (No model.)

which moves the pointer over dial 1, indicating time. This clockwork revolves a disk, 5, at a certain regular rate of speed.

6 is a friction-wheel perpendicular to and in'eontact with the face of disk 5. This disk may be faced with rubber to increase the friction, and wheel 6 is thereby revolved whenever it is moved from the center of and across the face of disk 5.

Transversely to and in the circumference of rim of wheel 6 are disks which roll on the face of disk 5 to allow wheel 6 to be moved easily across its face with little friction and mincrease the friction in the direction which disk 5 tends to revolve wheel 6. l/Vhen wheel 6 is revolved,it turns a shalt, 7; and to permititto be moved from and to the c enter of disk 5 the wheel 6 is made to slide on shaft 7.

8 is a shifter sliding in the guides 9. One arm of this shifter works in a groove, 10, on the hub of the wheel 6. connected by a pin, 11, to a link, 12, and this link connects with a slide, 13, on one of the curved arms of the sector 14, which turns on a pivot, 15. The slide 13 may be moved on the curved arm to adjust the registering mech anismviz., the mechanism for revolving the pointerf and the disks of the counter 3the curve of this arm being concentric with pin 11 and bisecting arbor 0 when the speed-indieating pointer is at the zero-point. Sector 14 gears with a pinion, 16, which is fast on the arbor c of the speed-indicator.

The bearing 17 of shaft 7 is pivoted at 18, so that the friction-wheel on the shaft may be pressed against the disk 5 by a spring, 19. The pressure, and consequently the friction, between disk 5 and wheel 6 may thereby be made more or less by turning a screw, 20, down or up and adjusting it to the proper amount, which will be just enough to revolve wheel 6 without its slipping on the face of the disk 5. The bevelgearf on shaft 7 turns the bevel-gearf on'a shaft, 21, on which is the pointerf of dial 2. The gear on shaft 7 also revolves the bevel-gear f 3 on a shaft, 22,which, by the bevel-gears 23, revolves ashaft, 24. On the end of shaft 24., which has a bearing in the counter 3, is a wheel, 25, having one tooth, which at every revolution enters between the teeth on a number-wheel, 26, which it turns two teeth, equal to a tenth of a revolution.

The other arm is' The circumference of wheel 25, entering between two teeth on wheel 26, serves as a stop or lock to that wheel while the teeth of wheel 25 is out of operation. At every revolution of wheel 26 single tooth, 27, on its circumference turns a pinion, 28, two teeth. This pinion is loose on a shaft, 29, and gears with the second number-wheel, 30, and thereby turns that wheel two teeth, or one-tenth of a revolution. When teeth 27 leaves pinion 28, the circumference of wheel 25 enters between the teeth of the pinion, thereby looking it and wheel 30. At every revolution of wheel 30 the pinion 31 and the third number-wheel, 32, are revolved two teeth and locked in the same manner as described for pinion 28 and wheel 30. Additional number-wheels are revolved in a similar way. Equidistant apart on the circuml'erential faces ot'the nu mber-wheels are the numerals 0.1, 2, 3, 1-, 5, 6. 7, S, 9, which appear in their regular order through apertures 83 in the dial-plate alternately with each movement of the wheel. The drawings show fon'r number-wheels, which will register, count, or numher from one up to ten thousand knots; but more or less number-wheels may be used, as desired.

The operation will be as follows: The time mechanism, running regularly, indicates uniform time on dial 1 and revolves the disk 5 continuously at a regular speed. As long as the speed-indicating pointer remains at its zeropoint, the friction-wheel 6 will remain on the center of disk 5, and consequently will not revolve, and the registering mechanismviz., the mechanism for moving the pointer f and the mechanism of the counter 3will reina'n at rest. When the speed-indicator moves around thelarge dial A, the pinion 16 on its shalt moves the sector 14, and this, by link 12 and shifter 8 in the groove 10, moves the triction-wheel 6 from the center of disk 5. Wheel 6 will be revolved at a speed directly in proportion to its distance from the center of the face of disk 5, and this distance will be directly in proportion to the distance which the speed-pointer has moved around the large dial. When wheel 6 is revolved, it turns shafts 7 and 21 with the pointer of dial 2, making one revolution for each knot the vessel runs. Shaft 7, also, through shaft 22, revolves shaft 241- the same number of revolutions. At each revolution of shaft 21 the first number-wheel, 26, is revolved two teeth, or one-tenth of a revolution, equal to the space occupied by one figure on its circumference. The figures appearing in the apertures in the dial-plate indicate the number of revolutions or knots. When wheel 26 has been revolved until the figure 9 is opposite to the aperture in the dial, tooth 27 reaches pinion 28, and with the next movement 01 wheel 26 the second number-wheel, 30, is revolved one space, registering the tens. .Vhen the figure 9 on wheel 30 reaches the aperture in the dial-plate, the next movement revolves the third numberwheel, 32, one spate, registering the hundreds. Other number-wheels are revolved in the same manner. \Vhen it is desired to bring the ciphers in view, the pinions on shaft 29 are moved out of gear with the number-wheels by moving shaft 29 from the number-wheels, which may then be placed as desired.

The registering mechanismviz.,that which moves the pointer f and the counter 3-is regulated by moving the slide 13 on the curved arm 14 to a position that will cause the time mechanism to move the pointer around dial 2, as described, an equal number of revolutions per hour, as the speed indicated on the large dialthat is, if the speed-pointer points to en knots for one hour, the pointer of dial 2 will make ten revolutions in that hour, and the counter will show the figures 10 at the end of the same time. "he data obtained by the logometer is, therefore, the speed of the v ssel per hour, indicated on the large dial; uniform time, on dial 1; numberof knots run, by the counter 3, and the traction of a knot, on dial 2.

I do not limit myself to the exact construc tion of the parts as illustrated in the drawings and herein described. as the same can be varied as may be required.

Having thus fully described inyinvention, I claim as new and desire to secure by Letters Patent 1. i The combination, with the pointer-arbor c, the pinion therein, the segment-rack 14:, a ehronometer and rotating plate 5, connectingrod 12, arm 8, and friction-wheel 6, of the shaft 7, gearwheels ff',t'or turning pointerf, and the shaft 22 24-. gear-wheels 23, and count ing; device 88, substantially as described.

2. Clhepointcr-arbor c and pinion thereon, in combination with segmcntrack 14-, rod 12, adjustably connected to the segment-rack,and arm 8, revolving disk 5, and the friction-wheel 6, substantially as and for the purposes set forth.

8. The arbor 0 of the speed-indicator, provided with the pinion 16, in combination with the sector 14-, shifting device 8, connected thereto, the chronometer mechanism, the triotion-disks 5 and 6, shafts 7 and 24, gear-wheels f, f, and 23, and the counter 3, substantially as described.- 7

CHARLES SPERRY. iVitnesses:

A. WEST, EDGAR TATE.

IIO 

